ABOVE VIDEO:Nearly 20,000 emails sent and received by Democratic National Committee staff members were released Friday by Wikileaks, and some messages are raising questions about the committee’s impartiality during the Democratic primary. (CNN Video)

(CNN) – Nearly 20,000 emails sent and received by Democratic National Committee staff members were released Friday by Wikileaks, and some messages are raising questions about the committee’s impartiality during the Democratic primary.

One email appears to show DNC staffers asking how they can reference Sanders’ faith to weaken him in the eyes of Southern voters. Another seems to depict an attorney advising the committee on how to defend Clinton against an accusation by the Sanders campaign of not living up to a joint fundraising agreement.

The revelation threatened to shatter the uneasy peace between the Clinton and Sanders camps and supporters days before the Democratic convention kicks off next week.

The leaks, from January 2015 to May 2016, feature Democratic staffers debating everything from how to deal with challenging media requests to coordinating the committee’s message with other powerful interests in Washington.